In case of circuit breaker, replacement is not required. ![]() (iv) After every operation, replacement is required in the fuse. (iii) The operating time of the fuse is smaller than operating time of CB. (ii) The breaking capacity of fuse is very small compare to that of circuit breaker. The detection of fault is made by relay system. Circuit breaker performs interruption function only. (i) Fuse performs both detection and interruption functions. What is the difference between fuse and circuit breaker? It is a usual practice to attach a word lagging or leading with the numerical value of power factor to signify whether the current lags or leads the voltage.ģ. The value of power factor will always be less than 1. The cosine of angle between voltage and the current in an AC circuit is known as power factor. It is used to improve the power factor of the system. What is meant by synchronous condenser?Īn over excited synchronous motor running on no load is known as synchronous condenser.
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